I have been looking at this for a while now as something has been stopping it from being "right" somehow. It's been bugging me as I couldn't put my finger on it till now.
The bank of the river is virtually cutting the picture in two but its not straight (not your fault) and the reflection also does not mirror the top of the picture, again not your fault entirely. This is making the picture unbalanced for me and leaving the bottom half of the picture a little barron. Its a shame you couldn't have raised your camera position to get the reflection of the lovely layers seen in the distance from the mountains.
Your other option would be to turn the picture into a landscape shot and crop out the lower section of the photo thus balancing the whole frame.
just my 2p's worth
I hope your are not offended as this critique is very critical and aimed with your obvious skill level in mind. I think the last thing you want to here is just "great shot".